What’s Vulnerable › Vulnerabilities

CVE-2026-34512: OpenClaw < 2026.3.25 - Improper Access Control in /sessions/:sessionKey/kill Endpoint

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-09 · updated 2026-06-17
• Weakness: CWE-863

Description

OpenClaw before 2026.3.25 contains an improper access control vulnerability in the HTTP /sessions/:sessionKey/kill route that allows any bearer-authenticated user to invoke admin-level session termination functions without proper scope validation. Attackers can exploit this by sending authenticated requests to kill arbitrary subagent sessions via the killSubagentRunAdmin function, bypassing ownership and operator scope restrictions.

Affected products

• OpenClaw: before 2026.3.25 — fixed in 2026.3.25

How to fix

Upgrade to a fixed version: OpenClaw 2026.3.25. Check the vendor advisory for mitigations.

References

• https://github.com/openclaw/openclaw/commit/02cf12371f9353a16455da01cc02e6c4ecfc4152
• https://github.com/openclaw/openclaw/security/advisories/GHSA-9p93-7j67-5pc2
• https://www.vulncheck.com/advisories/openclaw-improper-access-control-in-sessions-sessionkey-kill-endpoint

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